Safety-gate for drawbridges



(No Model.)

W. GODDARD. SAFETY GATE FOR DRAWBRIDGBS.

No. 482,499. Patented Sept. 13,1892.

amvamm Jaw awe (mag UNITED STATES PATENT, OFFICE.

IVILLIAM GODDARD OF OSHKOSH, \VISCONSIN.

SAFETY-GATE FOR DRAWBRIDG ES.

SPECIFICATION forming part of Letters Patent No. 482,499, dated September 13, 1892.

Application filed March 7, 1892. Serial No. 424,040. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM GODDARD, a citizen of the United States, residing at Oshkosh, in the county of Winnebago and State of \Visconsin, have invented certain new and useful Improvements in Safety- Gates for Drawbridges; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The object of my invention is to provide a safety-gate for drawbridges that will oper-' ate automatically to bar the roadway as the draw is swung.

In the accompanying drawings, Figure l is a top view, Fig. 2 a side view, and Figs. 3 and 4 end views, of the bridge and draw and operating mechanism.

Similar letters refer to similar parts in each view.

A is the bridge, B the draw, and C the gate. The gate slides up and down in grooves provided in the stanchions c c on each side and rises through the slot D in the floor of the bridge provided for that purpose.

Bars e are rigidly attached to each side of the gate near its lower end, said bars being pivoted to links 1' at e and the links t' pivoted to the rod f at t, and the rods f are pivoted to the sides of the bridge at H and bear at their outer ends weights E, said weights being heavy enough to raise the gate.

The arched track F is attached to the outwardly-projecting ends of the bars 6 below the roadway.

(Z 01 (Z cl are Wheels journaled in and supported by the bar J and travel upon the track F as the draw is opened and closed. WVhen the draw is being opened, the wheels 61 cl cl 61 travel down the arched track F and allow the gate to be raised automatically by the weights E E, and when the draw is being closed the wheels at 61 (Z 61 travel upon the arched track F, forcing it down, and also the gate connected therewith, at the same time raising the weights E E.

m is another wheel or traveler connected with the bar .I, which travels underneath the arched track F, the object being to surely start the gate upward in case it should be come stuck, so that the Weights E E alone would not operate it.

What I claim as my invention is 1. In an automatic bridge-gate opening and closing device, the combination of the vertically-sliding gate 0, bars 6, rigidly attached to the lower end of the gate, said bars being pivotally attached to a weighted lever f and said lever being pivoted to the side of the bridge, a track F, attached to the bars 6, and a draw 13, carrying rollers d, which latter are adapted to travel down and off the track F as the draw is open, thereby allowing the gate to rise automatically by means of the weighted lever and to travel up the inclined track as the draw is closed, thereby forcing down the track and the gate connected therewith and raising the weights, substantially as described.

2. In an automatic bridge-gate opening and closing device, the combination of the vertically-sliding gate 0, bars 6, rigidly attached to the lower end of said gate, said bars pivotally attached to Weighted lever f, which latter is pivoted to the side of the bridge, an arched track F, attached to the bars 6, a draw B, provided with a bar J, carrying rollers of travelers cl, which are adapted to travel on the arched track F, and an auxiliary roller or traveler m, which travels beneath and upon the arched track F, substantially as and for the purpose described.

3. In an automatic bridge-gate opening and closing device, the combination of the vertically-sliding gate (J, guideways c c, a slot or passage D in the bridge-floor for the passage of said gate, bars 6, rigidly attached to the lower end of the gate, said bars pivotally attached to a weighted lever f and said lever pivoted to the side of the bridge, a track F, attached to the bars e, and a draw B, carryraising the weights, substantially as deing rollers cl, which latter are adapted to scribed. 4 I travel down and off the track F as the draw In testimony whereofI affix my signature 1n is opened thereby allowing the gates to rise presence of two witnesses.

5 automatically by means of the weighted le- A WILLIAM GODDARD.

ver and to travel up the inclined track as Witnesses: the draw is closed, thereby forcing down the EDWIN CLIFFORD, track and the gate connected therewith and CHARLES J. SCHMITT. 

